Green Eyes

I would tell them, "Some people on the island have green eyes."

Originally posted by HandyAndy
I would tell them, "Some people on the island have green eyes."

explain.

Originally posted by BongalloJoe
explain.

No, "some" wouldn't work.

I want to convey the idea that all of them have green eyes by telling them something they already know.

Originally posted by BongalloJoe
explain.

How about "one or more"?

Originally posted by HandyAndy
How about "one or more"?

keep on explaining.

Is the eye colour relevant?

"You can't tell them something they didn't already know."
This sentence is confusing because of the double negative.
Do I have to tell the others something they already know or something they didn't know?

Originally posted by venda
"You can't tell them something they didn't already know."
This sentence is confusing because of the double negative.
Do I have to tell the others something they [b]already know or something they didn't know?[/b]

you have to tell them something that they did not know.
the eyee color is irrelevant.

Originally posted by BongalloJoe
you have to tell them something that they did not know.

But originally you said, "You can't tell them something they didn't already know."

Which is it?

Originally posted by BongalloJoe
you have to tell them something that they did not know.
the eyee color is irrelevant.

Do you tell all of them, "All of you have green eyes."

I'm assuming they all don't know this, because no one can see their own eyes... unless they look in mirror.

Do you say, "All of you, go look at yourselves in a mirror."

Originally posted by lemon lime
Do you say, "All of you, go look at yourselves in a mirror."

no. there is no way to figure out their own eye color without you coming there and saying something.

Originally posted by BongalloJoe
you have to tell them something that they did not know.

In the OP you said, "You can't tell them something they didn't already know."

Which is it?

Originally posted by BongalloJoe
no. there is no way to figure out their own eye color without you coming there and saying something.

It all depends if you are one of the hundred or not which you haven't answered.
If you aren't one of the hundred and have just landed on the island you could just tell them anything e.g "My name is bongallojoe "
You can easily prove this with your birth certificate
The green eye thing is totally irrelavant
So, are you one of the 100 suddenly having been given the gift of speech so you can talk to the watchman or just a passing visitor ?

Before we proceed we need a clarification on the tell-them-something-they-know (or don't-know) question. See post above.

The puzzle is trivial if you are allowed to tell them something they don't know -- for example, "Each one of you has green eyes."